Spatial distribution of long-term hail data observed in Uvurkhangai province

DOI

10.2991/978-94-6463-278-1_4How to use a DOI?

Keywords

Hail; Uvurkhangai province; Yearly frequencies; Monthly frequencies; Daily frequencies; Spatial distribution

Abstract

Hail is a solid precipitation that falls from cumulonimbus clouds. Hail is formed by moving updraft and downdraft through thick layers of different temperature and humidity inside the cumulonimbus cloud, and when it falls, it causes a strong impact on the surface in direct relation to the acceleration gained by the kinetic energy of the movement. It is a solid form of precipitation with a layered structure that comes from cumulonimbus clouds. In Mongolia, the frequency of hail is relatively decreasing, and the frequency of hail is relatively high in mountainous areas, while in the Gobi region, hail is relatively rare, it has been confirmed by research in recent years. Meteorological stations and weather posts observational data, from 1991 to 2020, for hail and hailstorm frequency by yearly and monthly, and spatial distribution of hail were studied in Uvurkhangai province of Mongolia. This study was conducted on the 17 meteorological stations of Uvurkhangai province, out of the total of 19 meteorological stations and weather posts, which operated continuously during the research period. A total of 135 hailstorms were observed in the territory of Uvurkhangai province for 30 years. In the territory of Uvurkhangai province, the years with the highest frequency of hail recorded 9 times in 1994, 1997, 2012, and 2016, while the lowest frequency of hail observed in 2004, 2005, and 2006, once time each. Also, no hail was in 1996 and 2015. According to the frequency of hailstorms in Uvurkhangai province, 49 hailstorms were observed in July and in April, the least number of hailstorms was observed, 3 times. In terms of daily observation, the highest rate of hail (22.2%) was observed between 15:00 and 16:00 and it is counted 30 times of repeat. Moreover, as a spatial coverage of hailstorms in Uvurkhangai province, the highest occurrence observed in Kharkhorin soum, 28 times, while the lowest frequency of hail recorded in Baruunbayan-Ulaan and Bayan-Undur soum, once time each, while no hail was observed in other soum.

Copyright

© 2023 The Author(s)

Open Access

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TY  - CONF
AU  - Chantsaldulam Chuluunbaatar
AU  - Jambajamts Lkhamjav
AU  - Ochirkhuyag Lkhamjav
PY  - 2023
DA  - 2023/10/29
TI  - Spatial distribution of long-term hail data observed in Uvurkhangai province
BT  - Proceedings of the Fourth International Conference on Environmental Science and Technology (EST 2023)
PB  - Atlantis Press
SP  - 28
EP  - 35
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-278-1_4
DO  - 10.2991/978-94-6463-278-1_4
ID  - Chuluunbaatar2023
ER  -